[ oh-mee-guh-mahy-nuh s, -mey-, oh-meg-uh- ]
/ oʊˈmi gəˈmaɪ nəs, -ˈmeɪ-, oʊˈmɛg ə- /
a baryon with strangeness −3, isotopic spin 0, and negative charge; predicted from the mathematics of the Eightfold Way and subsequently discovered. Symbol: Ω−
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Origin of omega-minus particle
First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019